Attachment for windshield wipers



May 10, 1949 i v. P. SCHNEIDER 2,469,791

'ATTACHMENT FOR WINDSHIELD WIPERS Filed May 17, 194e fig.- dawa 23j/@dwf PAT ENT 0 F FICE ATTACHMENT FOR WINDSHIELD WIPERS Victor P. Schneider, Green Bay, Wis. Application May 17, 1946, Serial No. 670,627

l 3 Claims. 1

'I'he invention relates to improvements in windshield wipers but more particularly to improvements in attachments adapted to increase the effectiveness of windshield wiper .blades by removing sleet, snow or frost so that the blade may pass freely over its path on the windshield: and has for its objects the provision of such a device which will be simple of construction, economical to operate and highly eiiicient in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which Figure 1 is a perspective view of fragmentary parts of an automobile body for illustrating a windshield window equipped for use with the device embodying the invention;

Figure 2 is a plan view of the novel attachment;

Figure 3 is a bottom plan View;

Figure 4 is a section taken on line Figure 2;

Figure 5 is a section taken on line Figure 2; and

Figure 6 is a section taken on line B--S of Figure 2.

The embodiment of the invention illustrated in the drawing comprises an elongated semicylindrical metal body I provided midway of its ends with a slotted opening II through which a connector unit I2 of a Wiper blade I3 will protrude sufficiently to connect with a wiper 'arm I4, as shown in Figures l and 2. Semi-circular blocks I of di-electric heat resisting material are attached to the body I0 at its ends by screws I6 inserted through suitable holes therein, adapted to hold said blocks l5 securely in place.

Mounting blocks I'I having curved outer margins I8 adapted to iit the inner walls of the shield body I0 are diametrically arranged in spaced relation intermediate of the end block I5. Each of the blocks I1 is provided with diametrically located notches I9 having a circular bottom 20. .At the bottom of each notch a hole is provided in the block in alignment with a suitable hole in the body I0 through which a suitable rivet 2| is secured as shown. The outer edges of the II-4 of notch I9 have opposed convergently projecting faces 22 and 23 adapted to suitably engage the metal frame 24 of the conventional wiper blade I3, as shown in Figure 5. By this arrangement the wiper blade I3 is free to rock back and forth as necessary for eiiicient use.

The blocks I1 are constructed of the same material as the end blocks I=5 and are provided with suitable holes 24 in alignment with holes l25, provided in the end blocks I5.

A suitable wire 26 of high resistance is mounted in parallel relation between an inner wall of the body I0 and the wiper blade I3 on each side thereof, and having its terminals 21 and 28 protruding at one of the end blocks I5 where it is to be connected to a su'table source of electrical energy by the usual means.

The body I6 is further provided with a highly polished inner surface adapted to serve as a reflector of the heat waves generated in the wire '26. By this arrangement the body I0 serves as a shield for the blade I3, and the wire when energized radiates heat waves against the blade I3 and its path of travel while in motion.

The arrangement is such that when mounted over a. wiper blade in use on an automobile windshield, as shown in Figure 1, the heating element receives a suitable current of electricity. The element becomes heated and reiiects the heat against the glass of the windshield and also the wiping ele-ment oi said blade, thereby applying heat directly for the removal of snow or ice and prevents the blade from adhering.

While I have illustrated and described a suitable arrangement and combinations of parts for carrying the invention into use, I do not wish to be limited by the precise details thereof, but desire to avail myself of such variations and modifications as will fall within the spirit and scope of the appended claims.

I claim:

1. In combination, a reciprocating Windshield wiper blade of the squeegee type; a semi-cylindrical metal housing; semi-circular end blocks of di-electric heat resisting material attached to said housing; a plurality of mounting blocks of di-electric heat resisting material secured in spaced relation intermediate said end blocks; a diametrically aligned notch in each of said mounting blocks having a circular bottom with opposed convergingly projecting curved faces arranged and adapted to rockably engage the metal frame of a conventional wiper blade when inserted therein; heating elements arranged longitudinally of said housing adjacent opposite inner walls and carried in suitable openings, in said end blocks and said mounting blocks arranged and adapted to be connected to a suitable source of electrica1 energy; there being a slotted opening at the top of said housing through which a connector unit of a Wiper blade will protrude suciently to engage a wiper arm.

2. The construction specied in claim 1 in which the said semi-cylindrical housing is provided with an inner surface for reflecting heat 15 2,034,880

Waves.

3. The construction specied in claim 1 in which the mounting blocks are each provided with opposed convergently projecting faces arranged and adapted to rockably hold a wiper 5 blade frame.

VICTOR P. SCHNEDDER. m

REFERENCES CITED The following references are of record in the l0 le of this patent:

UNITED STATES PATENTS Number Name Date 1,640,887 Davis Aug. 30, 1927 Sackett Mar. 24, 1936 Cordova Feb. 25, 1947 

